| Caulerpa J.V. Lamour., 1809 |
| Caulerpa ambigua Okamura, 1897 |
| Caulerpa ambigua var. ambigua Okamura, 1897 |
| Caulerpa ambigua var. luxurians (W.R. Taylor) Eubank, 1946 |
| Caulerpa antoensis Yamada, 1940 |
| Caulerpa arenicola W.R. Taylor, 1950 |
| Caulerpa ashmeadii Harv., 1858 |
| Caulerpa chemnitzia (Esper) J.V. Lamour., 1809 |
| Caulerpa chemnitzia var. occidentalis J. Agardh, 1873 |
| Caulerpa chemnitzia var. turbinata (J. Agardh) Fernández-García & Riosmena-Rodríguez, 2017 |
| Caulerpa chemnitzia var. vanbosseae (Setchell & N.L. Gardner) Fernández-García & Riosmena-Rodríguez, 2017 |
| Caulerpa clavifera (Turner) C. Agardh, 1817 |
| Caulerpa clavifera var. turbinata J. Agardh, 1837 |
| Caulerpa complanata J. Agardh, 1873 |
| Caulerpa crassifolia (C. Agardh) J. Agardh, 1873 |
| Caulerpa crassifolia f. fasciata Delile, 1813 |
| Caulerpa crassifolia f. mexicana (Sond. ex Kütz.) J. Agardh, 1873 |
| Caulerpa crassifolia f. pectinata (Kütz.) Collins, 1909 |
| Caulerpa cupressoides (Vahl) C. Agardh, 1817 |
| Caulerpa cupressoides f. alternifolia (P. Crouan & H. Crouan) Weber-van Bosse, 1898 |